[ENH] Newsletters : Return to previous interface when sending newsletter is cancelled
Ticket: https://avan.tech/item102762
In example.org/tiki-send_newsletters.php click on "Send newsletter" button, then click on "Cancel" button.
Error in console JS:
tiki-send_newsletters.php:1154 Uncaught TypeError: Cannot read properties of null (reading 'documentElement')
at HTMLIFrameElement.<anonymous> (tiki-send_newsletters.php:1154:49)
at HTMLIFrameElement.dispatch (jquery.js:5145:27)
at elemData.handle (jquery.js:4949:28)